380 CLASSIFICATION OF REPTILES. 



pores ; scales of the body oblique ; a crest of small 

 spines (highest on the nape) extends along the back 

 and tail ; hinder fourth toe very long ; tail very 

 slender^ attenuated ; scales small^ pointed^ sometimes 

 directed forwards.* 

 C. gutturosa. Lesson, Atl. 1.1. versicolor. Am. Tr. iv. 1 9. 



Lopliyrus Dum.f Gular pouch very large ; toes as in 



Calotes ; nape elevated into a very spinous crest covered 



with scales at the base ; ridge of the body and tail 



with a crest of spines more or less developed in the 



species ; femoral pores none.j 



L. dilophus. Erp. Gen. pi, 46. (t\^ical.) 



tigrinus. lb. pi, 41. (aberrant) with the frontal crest of 

 Lyrioeephalus, 



Lyriocephaliis j\Ierr. Head short ; an elevated ridge or 

 crest on the eyebrows unites in fronts in the shape of 

 a lyre, and forms two horn-hke projections behind; 

 ears concealed ; gular pouch small ; tail rather short, 

 obtuse, much compressed ; eyelids covered with scales, 

 as in the Chameleons, but the aperture rather larger ; 

 back and tail serrated with small, conic, acute, com- 

 pressed scales j snout gibbous ; the fourth hind toe 

 very long. 



L, scutatus Gray, Griff, ix. p. 54, Grayii. Sw. Ind, Zool. 



Draco. "With an enormous development of the gular 

 skin, or expansive membranes on the sides of the 

 body.§ 



Sitana Cuv, Four unequal toes only on the hinder 

 feet ; gular pouch of the males enormous, extending 

 to the middle of the beUy. 



S. Pondlcerianus. Reg. Anim. pi, 6. fig. 2. 



* I do not believe the C. ophiomachus belongs to this group. 



f Lophirus cannot be retained in this division of Zoology, as that name 

 designates a remarkable genus of birds. 



X I consider this group, by its large gular pouch, to connect this genus 

 to Sitana, and the dragons ; and that Lyrioeephalus, of all others among 

 the Agami, shows the greatest resemblance to the chameleons ; although 

 one ot two forms are necessary to fill up this latter series, which thus com- 

 pleres the circle of the whole order. 



\ Corresponding to the VespertUionicUe among quadrupeds, and theP^c- 

 tognathes among fishes. 



